Merge remote-tracking branch 'qatar/master'

* qatar/master: (36 commits)
  adpcmenc: Use correct frame_size for Yamaha ADPCM.
  avcodec: add ff_samples_to_time_base() convenience function to internal.h
  adx parser: set duration
  mlp parser: set duration instead of frame_size
  gsm parser: set duration
  mpegaudio parser: set duration instead of frame_size
  (e)ac3 parser: set duration instead of frame_size
  flac parser: set duration instead of frame_size
  avcodec: add duration field to AVCodecParserContext
  avutil: add av_rescale_q_rnd() to allow different rounding
  pnmdec: remove useless .pix_fmts
  libmp3lame: support float and s32 sample formats
  libmp3lame: renaming, rearrangement, alignment, and comments
  libmp3lame: use the LAME default bit rate
  libmp3lame: use avpriv_mpegaudio_decode_header() for output frame parsing
  libmp3lame: cosmetics: remove some pointless comments
  libmp3lame: convert some debugging code to av_dlog()
  libmp3lame: remove outdated comment.
  libmp3lame: do not set coded_frame->key_frame.
  libmp3lame: improve error handling in MP3lame_encode_init()
  ...

Conflicts:
	doc/APIchanges
	libavcodec/libmp3lame.c
	libavcodec/pcxenc.c
	libavcodec/pnmdec.c
	libavcodec/pnmenc.c
	libavcodec/sgienc.c
	libavcodec/utils.c
	libavformat/hls.c
	libavutil/avutil.h
	libswscale/x86/swscale_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/sgienc.c

@@ -21,6 +21,7 @@
 
 #include "avcodec.h"
 #include "bytestream.h"
+#include "internal.h"
 #include "sgi.h"
 #include "rle.h"
 
@@ -41,17 +42,17 @@ static av_cold int encode_init(AVCodecContext *avctx)
     return 0;
 }
 
-static int encode_frame(AVCodecContext *avctx, unsigned char *buf,
-                        int buf_size, void *data)
+static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
+                        const AVFrame *frame, int *got_packet)
 {
     SgiContext *s = avctx->priv_data;
     AVFrame * const p = &s->picture;
-    uint8_t *offsettab, *lengthtab, *in_buf, *encode_buf;
-    int x, y, z, length, tablesize;
+    uint8_t *offsettab, *lengthtab, *in_buf, *encode_buf, *buf;
+    int x, y, z, length, tablesize, ret;
     unsigned int width, height, depth, dimension, bytes_per_channel, pixmax, put_be;
-    unsigned char *orig_buf = buf, *end_buf = buf + buf_size;
+    unsigned char *end_buf;
 
-    *p = *(AVFrame*)data;
+    *p = *frame;
     p->pict_type = AV_PICTURE_TYPE_I;
     p->key_frame = 1;
 
@@ -106,12 +107,18 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf,
     }
 
     tablesize = depth * height * 4;
-    length = tablesize * 2 + SGI_HEADER_SIZE;
+    length = SGI_HEADER_SIZE;
+    if (avctx->coder_type == FF_CODER_TYPE_RAW)
+        length += depth * height * width;
+    else // assume ff_rl_encode() produces at most 2x size of input
+        length += tablesize * 2 + depth * height * (2 * width + 1);
 
-    if (buf_size < length) {
-        av_log(avctx, AV_LOG_ERROR, "buf_size too small(need %d, got %d)\n", length, buf_size);
-        return -1;
+    if ((ret = ff_alloc_packet(pkt, length)) < 0) {
+        av_log(avctx, AV_LOG_ERROR, "Error getting output packet of size %d.\n", length);
+        return ret;
     }
+    buf     = pkt->data;
+    end_buf = pkt->data + pkt->size;
 
     /* Encode header. */
     bytestream_put_be16(&buf, SGI_MAGIC);
@@ -153,7 +160,7 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf,
             in_buf = p->data[0] + p->linesize[0] * (height - 1) + z;
 
             for (y = 0; y < height; y++) {
-                bytestream_put_be32(&offsettab, buf - orig_buf);
+                bytestream_put_be32(&offsettab, buf - pkt->data);
 
                 for (x = 0; x < width; x++)
                     encode_buf[x] = in_buf[depth * x];
@@ -193,7 +200,11 @@ static int encode_frame(AVCodecContext *avctx, unsigned char *buf,
     }
 
     /* total length */
-    return buf - orig_buf;
+    pkt->size = buf - pkt->data;
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    *got_packet = 1;
+
+    return 0;
 }
 
 AVCodec ff_sgi_encoder = {
@@ -202,7 +213,7 @@ AVCodec ff_sgi_encoder = {
     .id             = CODEC_ID_SGI,
     .priv_data_size = sizeof(SgiContext),
     .init           = encode_init,
-    .encode         = encode_frame,
+    .encode2        = encode_frame,
     .pix_fmts= (const enum PixelFormat[]){PIX_FMT_RGB24, PIX_FMT_RGBA,
                                           PIX_FMT_RGB48LE, PIX_FMT_RGB48BE,
                                           PIX_FMT_RGBA64LE, PIX_FMT_RGBA64BE,