Update internal FFmpeg copy.

1 files changed, 106 insertions, 47 deletions

diff --git a/contrib/ffmpeg/libavcodec/nuv.c b/contrib/ffmpeg/libavcodec/nuv.c
index 5989c6cc2..6193806fa 100644
--- a/contrib/ffmpeg/libavcodec/nuv.c
+++ b/contrib/ffmpeg/libavcodec/nuv.c
@@ -21,7 +21,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "common.h"
 #include "avcodec.h"
 
 #include "bswap.h"
@@ -31,6 +30,8 @@
 
 typedef struct {
     AVFrame pic;
+    int codec_frameheader;
+    int quality;
     int width, height;
     unsigned int decomp_size;
     unsigned char* decomp_buf;
@@ -39,6 +40,28 @@ typedef struct {
     DSPContext dsp;
 } NuvContext;
 
+static const uint8_t fallback_lquant[] = {
+    16,  11,  10,  16,  24,  40,  51,  61,
+    12,  12,  14,  19,  26,  58,  60,  55,
+    14,  13,  16,  24,  40,  57,  69,  56,
+    14,  17,  22,  29,  51,  87,  80,  62,
+    18,  22,  37,  56,  68, 109, 103,  77,
+    24,  35,  55,  64,  81, 104, 113,  92,
+    49,  64,  78,  87, 103, 121, 120, 101,
+    72,  92,  95,  98, 112, 100, 103,  99
+};
+
+static const uint8_t fallback_cquant[] = {
+    17, 18, 24, 47, 99, 99, 99, 99,
+    18, 21, 26, 66, 99, 99, 99, 99,
+    24, 26, 56, 99, 99, 99, 99, 99,
+    47, 66, 99, 99, 99, 99, 99, 99,
+    99, 99, 99, 99, 99, 99, 99, 99,
+    99, 99, 99, 99, 99, 99, 99, 99,
+    99, 99, 99, 99, 99, 99, 99, 99,
+    99, 99, 99, 99, 99, 99, 99, 99
+};
+
 /**
  * \brief copy frame data from buffer to AVFrame, handling stride.
  * \param f destination AVFrame
@@ -46,7 +69,7 @@ typedef struct {
  * \param width width of the video frame
  * \param height height of the video frame
  */
-static void copy_frame(AVFrame *f, uint8_t *src,
+static void copy_frame(AVFrame *f, const uint8_t *src,
                        int width, int height) {
     AVPicture pic;
     avpicture_fill(&pic, src, PIX_FMT_YUV420P, width, height);
@@ -57,7 +80,7 @@ static void copy_frame(AVFrame *f, uint8_t *src,
  * \brief extract quantization tables from codec data into our context
  */
 static int get_quant(AVCodecContext *avctx, NuvContext *c,
-                     uint8_t *buf, int size) {
+                     const uint8_t *buf, int size) {
     int i;
     if (size < 2 * 64 * 4) {
         av_log(avctx, AV_LOG_ERROR, "insufficient rtjpeg quant data\n");
@@ -70,9 +93,44 @@ static int get_quant(AVCodecContext *avctx, NuvContext *c,
     return 0;
 }
 
+/**
+ * \brief set quantization tables from a quality value
+ */
+static void get_quant_quality(NuvContext *c, int quality) {
+    int i;
+    quality = FFMAX(quality, 1);
+    for (i = 0; i < 64; i++) {
+        c->lq[i] = (fallback_lquant[i] << 7) / quality;
+        c->cq[i] = (fallback_cquant[i] << 7) / quality;
+    }
+}
+
+static int codec_reinit(AVCodecContext *avctx, int width, int height, int quality) {
+    NuvContext *c = avctx->priv_data;
+    width = (width + 1) & ~1;
+    height = (height + 1) & ~1;
+    if (quality >= 0)
+        get_quant_quality(c, quality);
+    if (width != c->width || height != c->height) {
+        if (avcodec_check_dimensions(avctx, height, width) < 0)
+            return 0;
+        avctx->width = c->width = width;
+        avctx->height = c->height = height;
+        c->decomp_size = c->height * c->width * 3 / 2;
+        c->decomp_buf = av_realloc(c->decomp_buf, c->decomp_size + LZO_OUTPUT_PADDING);
+        if (!c->decomp_buf) {
+            av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n");
+            return 0;
+        }
+        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
+    } else if (quality != c->quality)
+        rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
+    return 1;
+}
+
 static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
-                        uint8_t *buf, int buf_size) {
-    NuvContext *c = (NuvContext *)avctx->priv_data;
+                        const uint8_t *buf, int buf_size) {
+    NuvContext *c = avctx->priv_data;
     AVFrame *picture = data;
     int orig_size = buf_size;
     enum {NUV_UNCOMPRESSED = '0', NUV_RTJPEG = '1',
@@ -84,16 +142,6 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
         return -1;
     }
 
-    if (c->pic.data[0])
-        avctx->release_buffer(avctx, &c->pic);
-    c->pic.reference = 1;
-    c->pic.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_READABLE |
-                          FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
-    if (avctx->get_buffer(avctx, &c->pic) < 0) {
-        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
-        return -1;
-    }
-
     // codec data (rtjpeg quant tables)
     if (buf[0] == 'D' && buf[1] == 'R') {
         int ret;
@@ -115,11 +163,43 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
     // skip rest of the frameheader.
     buf = &buf[12];
     buf_size -= 12;
+    if (comptype == NUV_RTJPEG_IN_LZO || comptype == NUV_LZO) {
+        int outlen = c->decomp_size, inlen = buf_size;
+        if (lzo1x_decode(c->decomp_buf, &outlen, buf, &inlen))
+            av_log(avctx, AV_LOG_ERROR, "error during lzo decompression\n");
+        buf = c->decomp_buf;
+        buf_size = c->decomp_size;
+    }
+    if (c->codec_frameheader) {
+        int w, h, q;
+        if (buf_size < 12) {
+            av_log(avctx, AV_LOG_ERROR, "invalid nuv video frame\n");
+            return -1;
+        }
+        w = AV_RL16(&buf[6]);
+        h = AV_RL16(&buf[8]);
+        q = buf[10];
+        if (!codec_reinit(avctx, w, h, q))
+            return -1;
+        buf = &buf[12];
+        buf_size -= 12;
+    }
+
+    if (c->pic.data[0])
+        avctx->release_buffer(avctx, &c->pic);
+    c->pic.reference = 1;
+    c->pic.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_READABLE |
+                          FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;
+    if (avctx->get_buffer(avctx, &c->pic) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        return -1;
+    }
 
     c->pic.pict_type = FF_I_TYPE;
     c->pic.key_frame = 1;
     // decompress/copy/whatever data
     switch (comptype) {
+        case NUV_LZO:
         case NUV_UNCOMPRESSED: {
             int height = c->height;
             if (buf_size < c->width * height * 3 / 2) {
@@ -129,24 +209,11 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
             copy_frame(&c->pic, buf, c->width, height);
             break;
         }
+        case NUV_RTJPEG_IN_LZO:
         case NUV_RTJPEG: {
             rtjpeg_decode_frame_yuv420(&c->rtj, &c->pic, buf, buf_size);
             break;
         }
-        case NUV_RTJPEG_IN_LZO: {
-            int outlen = c->decomp_size, inlen = buf_size;
-            if (lzo1x_decode(c->decomp_buf, &outlen, buf, &inlen))
-                av_log(avctx, AV_LOG_ERROR, "error during lzo decompression\n");
-            rtjpeg_decode_frame_yuv420(&c->rtj, &c->pic, c->decomp_buf, c->decomp_size);
-            break;
-        }
-        case NUV_LZO: {
-            int outlen = c->decomp_size, inlen = buf_size;
-            if (lzo1x_decode(c->decomp_buf, &outlen, buf, &inlen))
-                av_log(avctx, AV_LOG_ERROR, "error during lzo decompression\n");
-            copy_frame(&c->pic, c->decomp_buf, c->width, c->height);
-            break;
-        }
         case NUV_BLACK: {
             memset(c->pic.data[0], 0, c->width * c->height);
             memset(c->pic.data[1], 128, c->width * c->height / 4);
@@ -170,32 +237,24 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *data_size,
 }
 
 static int decode_init(AVCodecContext *avctx) {
-    NuvContext *c = (NuvContext *)avctx->priv_data;
-    avctx->width = (avctx->width + 1) & ~1;
-    avctx->height = (avctx->height + 1) & ~1;
-    if (avcodec_check_dimensions(avctx, avctx->height, avctx->width) < 0) {
-        return 1;
-    }
-    avctx->has_b_frames = 0;
+    NuvContext *c = avctx->priv_data;
     avctx->pix_fmt = PIX_FMT_YUV420P;
     c->pic.data[0] = NULL;
-    c->width = avctx->width;
-    c->height = avctx->height;
-    c->decomp_size = c->height * c->width * 3 / 2;
-    c->decomp_buf = av_malloc(c->decomp_size + LZO_OUTPUT_PADDING);
-    if (!c->decomp_buf) {
-        av_log(avctx, AV_LOG_ERROR, "Can't allocate decompression buffer.\n");
-        return 1;
-    }
-    dsputil_init(&c->dsp, avctx);
+    c->decomp_buf = NULL;
+    c->quality = -1;
+    c->width = 0;
+    c->height = 0;
+    c->codec_frameheader = avctx->codec_tag == MKTAG('R', 'J', 'P', 'G');
     if (avctx->extradata_size)
         get_quant(avctx, c, avctx->extradata, avctx->extradata_size);
-    rtjpeg_decode_init(&c->rtj, &c->dsp, c->width, c->height, c->lq, c->cq);
+    dsputil_init(&c->dsp, avctx);
+    if (!codec_reinit(avctx, avctx->width, avctx->height, -1))
+        return 1;
     return 0;
 }
 
 static int decode_end(AVCodecContext *avctx) {
-    NuvContext *c = (NuvContext *)avctx->priv_data;
+    NuvContext *c = avctx->priv_data;
     av_freep(&c->decomp_buf);
     if (c->pic.data[0])
         avctx->release_buffer(avctx, &c->pic);